title: Note: Comparative experimental studies on the performance of 2-2 piezocomposite for medical ultrasound transducers.
abstract: The paper reports the experimental investigation of the behavior of 2-2 Lead Zirconate Titanate (PZT)-polymer composite transducers array for clinical ultrasound equipments. Several 2-2 plate composites having the same dicing pitch of 0.11 mm and different volume fractions were manufactured and investigated. Measurements were performed through different techniques such as electrical impedance, pulse-echo, and Laser Doppler Vibrometer. With the last one, maps of the surface displacement were presented relative to thickness mode and first lateral mode resonance frequencies. The transducers with volume fractions of the 40% resulted markedly inefficient, whereas the largest bandwidth and best band shape were achieved by the 50%.
authors.affiliation: Department of Mechanical and Aerospace Engineering, "Sapienza" University of Rome, Eudossiana 18, 00184 Rome, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Marinozzi
authors.forename: F
authors.initials: F
authors.lastname: Bini
authors.forename: A
authors.initials: A
authors.lastname: Biagioni
authors.forename: A
authors.initials: A
authors.lastname: Grandoni
authors.forename: L
authors.initials: L
authors.lastname: Spicci
mesh_terms: D018616:Ultrasonography, Doppler, Duplex / Q000295:instrumentation* / Q000379:methods*